Mineralpedia Details for Malhmoodite
Malhmoodite
Commonly, and initially, misspelled Mahlmoodite, this mineral is named for Bertha K. Malhmood who was an Analytical Assistant at the United States Geological Survey. Malhmoodite is a rare mineral that occurs only in two localities: at the Wilson Springs Union Carbide mine in Arkansas, USA and in Kerriack Cove in Cornwall, England. It occurs as Wilson Springs as a secondary mineral in vugs within alkalic igneous rocks and at Kerriack Cove in a mineralized fissure vein.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/mahlmoodite.pdf
- Formula
- Fe2+Zr(PO4)2ยท4H2O
- Crystal System
- Monoclinic
- Cleavage
- Good, None, None
- Luster
- Silky
- Color
- cream white
- Streak
- white
- Class
- Monoclinic - Prismatic
- Hardness
- 3
- WebMineral
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- Mindat
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Malhmoodite from Union Carbide mine, Wilson Springs, Garland Co., Arkansas, United States
This specimen has at least two creamy white spheres to about 0.3mm in the crevices between Diopside matrix.
Click thumbnail images for larger view.
